Square D | KC34250G | Circuit Breaker | 250A | 3-Pole | 480V | Plug-In

Meet the Square D KC34250G Circuit Breaker—a rugged, plug-in protection solution engineered for demanding three‑phase power. With a 250A rating, a 3‑pole configuration, and 480V compatibility, this breaker delivers reliable safeguarding for high‑load feeders and motor circuits in industrial panels. Built by Square D, it combines robust construction with straightforward installation, making retrofit or replacement projects faster and less disruptive.

Key benefits

• 250A rating for high‑demand loads: Ideal for large feeders, motors, and critical equipment where consistent protection is essential.
• 3‑pole, three‑phase protection: Provides true 3‑phase interrupt protection to maintain balanced loads and system stability.
• 480V operating capability: Designed for common industrial power distribution environments.
• Plug‑in design for fast upgrades: Simplifies installation and future maintenance, reducing downtime during replacements or retrofits.
• Trusted Square D reliability: Backed by the brand’s long-standing safety and performance standards.
• Clear compatibility reference: Use part number KC34250G as the best guide for matching to your panel.

Ideal use cases

• Retrofits and replacements in panels that support plug‑in Square D breakers, especially for high‑amp, three‑phase circuits.
• New installations where large motor drives, pumps, conveyors, or other heavy loads require solid over‑current protection at 480V.
• Maintenance windows where minimizing downtime is a priority, thanks to quick plug‑in installation.

Technical specifications

• Amperage: 250A
• Poles: 3‑Pole
• Voltage: 480V
• Mounting: Plug‑In
• Part number: KC34250G
• Product type: Circuit Breaker

Installation & compatibility

Before ordering, confirm fit and ratings match your panel’s requirements. The KC34250G is the most reliable compatibility reference for matching to Square D plug‑in panel configurations. Verify that your panel supports plug‑in, three‑pole breakers at 480V and that the bus and mounting arrangement align with this unit. If you’re upgrading from a lower amp or different family, double‑check the panel labeling and the manufacturer’s catalog to ensure a seamless swap.

Care, safety, and best practices

Handle with care during installation, ensuring the system is de‑energized and properly grounded. Regularly inspect the breaker for signs of wear, overheating, or corrosion, and replace it if any abnormalities are observed. Maintain clear labeling on the panel and keep the environment clean and dry to preserve performance and safety over the long term.